Hello,
I have a problem with the Dell monitor whit LCD Panel MV270FHM-N20
that starts with a normal picture but after three or four seconds of work, it starts to draw horizontal lines progressing from the bottom to the top.
The power supply generates stable voltages.
The power supply of the matrix is 5 volts, which is also stable.
I don't think normal sounds can be heard from the LVDS board.
After measurements are made on the test points on LVDS, the measurements are
VGH 23.7v
AVDDS 11.7v
AVDD 11.7v
VOFF -7.7v
VGL 7.4v
Vcom 4.7v
And in my opinion a DC-DC converter with a very high operating temperature.
Markings on it are, ER = 4C 334
Оn the board is marked as - IC201
Has anyone encountered anything like this, or does someone know the model of the IC?
Thanks in advance.
I have a problem with the Dell monitor whit LCD Panel MV270FHM-N20
that starts with a normal picture but after three or four seconds of work, it starts to draw horizontal lines progressing from the bottom to the top.
The power supply generates stable voltages.
The power supply of the matrix is 5 volts, which is also stable.
I don't think normal sounds can be heard from the LVDS board.
After measurements are made on the test points on LVDS, the measurements are
VGH 23.7v
AVDDS 11.7v
AVDD 11.7v
VOFF -7.7v
VGL 7.4v
Vcom 4.7v
And in my opinion a DC-DC converter with a very high operating temperature.
Markings on it are, ER = 4C 334
Оn the board is marked as - IC201
Has anyone encountered anything like this, or does someone know the model of the IC?
Thanks in advance.
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